Blade guard



FIG. 1 is a front perspective view of a design of the blade guard;

FIG. 2 is a side elevation view of the blade guard of FIG. 1, with the other sides of the blade guard being identical images thereof;

FIG. 3 is a top plan view of the blade guard of FIG. 1; and,

FIG. 4 is a bottom plan view of the blade guard of FIG. 1.

The portion shown in broken lines is for illustrative purposes only and forms no part of the claimed design. 

We claim the ornamental design for a blade guard, as shown and described. 